Loom.



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UNITED STATES PATENT OFFICE.

IIENRY BARDSLEY, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO CROMPTON &KNOWLES LOOM *vVORKS, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OFRHODE ISLAND.

LOOM.

SPEGIEICATIQN forming part of Letters Patent No. 691,578, dated January21, 1 902.

Application filed September 25, 1901- Serial No. 76,461. (No model.)

ings.

Loom-shuttles have been provided in some cases with devices forascertaining automatically the breakage or exhaustion of the weftyarnscarried thereby and in other'cases they have been provided with devicesfor ascertaining when the supply or load of weft-yarn within a shuttlehas become used up to a predetermined extent. In both of these classesof cases such shuttles have been furnished also with means to trip intoaction instrumentalities exterior to the shuttles constructed andoperating to occasion a change in the working of the looms, such changeinvolving in some instances an arrest of the motion of a loom and inothers the automatic replenishment of the working weft-supply of a loomwithout terminating the running of the loom.

My invention relates in particular to the devices in a loom which coactmore immediately with the trip carried by the shuttle that is at work insuch loom and which are brought into action by such trip for the purposeof instituting the change aforesaid in the working of the loom.

The invention consists in the novel combination of parts which I nowwill proceed to describe with reference to the accompanying drawings, inwhich latter the same is illustrated.

, In the drawings, Figure 1 represents in end elevation portion of aloom having the invention applied thereto, only such features beingshown as are required for the purpose of rendering clear the nature andrelations of the invention. Fig. 2 shows the same in plan.

Having reference to the drawings, 1 designates portion of one side frameof a loom; 2, portionof the breast-beam; 3, portion of the lay-beam; 4,the shuttle-box front at one end of the lay-beam; 5, the shuttle-boxback at the said end of the lay-beam, and 6 portion of one of the swordsof the lay. These parts are'all usual'features of a loom.

In carrying my invention into effect I employ at the rear of theshuttle-box a movable trip 7, which latter is pivoted, as at 8, to asmall plate or bracket 9, that is attached to the rear side of theshuttle-box back 5. A contracting spiral spring 10 has one extremityconnected with the said trip and the other with the inner portion of theplate or bracket 9, and said spring holds the trip normally in theposition represented in Fig. 2, in which figure one edge thereof is incontact with a stop-pin 11, carried by plate or bracket 9, while theforward end of said trip enters the interior space of the shuttle-boxand extends into the path of movement of the trip that is carried by theworking shuttle. (Not shown.) The rearwardly-projecting portion or tailof the trip 7 serves as a detent, against which is intended to takebearing a pin 12, carried byahorizontally-extending arm 13, fast uponthe upper end of a vertical rock-shaft 14, mounted in a bearing 15,carried by the lay at the rear of the lay-beam. The said rockshaft isprovided at its lower end with a hunter or dagger 16 and also with aresettingarm 17. The said bunter or dagger 16 has attached thereto oneextremity of a contractin g spiral spring 18, (shown in dotted lines inFig. 2,) said spring having its other extremity connected with a fixedpart of the lay. The resetting-arm 17 is designed to coact in therearward stroke of the lay with a resettingcam constituted bya fixed pin19, extending upwardly from a bracket 20, which is aflixed to the endframe or loom side 1.

The engagement of resetting-arm 17 with resetting-cam 19 in the rearwardstroke of the lay causes the resetting-arm, the rock-shaft 14, thebunteror dagger 16, and the detentarm 13 to assume the positions inwhich they are shown in Fig. 2. The said parts are held in suchpositions by the trip 7, which latter is drawn by spring 10automatically into position to engage with the pin 12, that is carriedby the detent-arm 13.

parts are retained in these positions the dagger or bunter 16 isinoperative. Should, how- So long as the ICO ever, the trip devicecarried by the shuttle engage with the trip 7, which is applied inconnection with the shuttle-box, and move the said trip 7 so as todisengage the same from the pin 12, thereby freeing the detentarm 13,the spring 18 will be permitted to act and will turn the rock-shaft 14and connected parts, placing thereby the dagger or bunter 16 in itsoperative position.

The dagger or hunter 16 is designed to actuate the mechanism by means ofwhich the change in the working of the loom is brought about. Suchmechanism may act either to arrest the loom or to effect automaticallythe replenishment of the working weft-supply without terminating theworking of the loom. More immediately the said dagger in its operativeposition is caused to engage in the advance of the lay with one arm ofthe knockoff lever 21 and to turn the said lever so as to dislodge theshipper-handle 22 from its retaining-notch at one end of the slot 23 inthe plate 2 1, projecting outwardly from one end of the breast-beam 2.Lever 21 and shipperhandle 22 may be termed for convenience the shipperdevices, and in practice they are in operative control of the means forshipping the driving power on and off or of the weft-replenishinginstrumentalities, according as the loom may be equipped to operate. Inthe drawings I have for convenience of representation shown a portion 25of ordinary belt-shifting mechanism in connection with the shipper 22.

91 is a pin or equivalent stop, which is provided on the plate orbracket 9 for the purpose of preventing the trip 7 from moving too farwhen its operative end is engaged to actuate the trip by the other tripcarried by the moving shuttle.

I claim as my invention- 1. In a loom, in combination, the lay, thespring-actuated trip 7 mounted thereon and adapted to be operated inpractice by a coacting trip carried by the loom-shuttle, the verticalrock -shaft carried by the lay and provided on its upper end with thehorizontally-extending detent-arm engaging with the rear end of saidtrip first mentioned, a dagger or hunter on the lower end of saidrockshaft, a resetting-arm on said rock-shaft, a spring to cause saiddagger or hunter to assume its operative position, shipper devicesoperated by the advance of said dagger or hunter with the lay when inits operative position, and a resetting-cam cooperating with saidresetting'arm.

2. In a loom, in combination, the lay," the spring-actuated trip '7mounted thereon and adapted to be operated in practice by a coactingtrip carried by the loom-shuttle, the vertical rock-shaft carried by thelay and provided on its upper end with thehorizontally-extendingdetent-arm engaging with the rear end of said tripfirst mentioned, a dagger or hunter on the lower end of said rockshaft,a resetting-arm on said rock-shaft, a spring to cause said dagger orhunter to assume its operative position, the lever 21 operated by theadvance of said dagger or hunter with the lay when in its operativeposition, the shipper operated by said lever, and a resetting-camcooperating with said resettingarm.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY BARDSLEY.

Witnesses:

H. E. STAFFORD, E. NIsBET.

